ATMEGA8-16PC - 16MHz 8-bit AVR MCU, 8KB Flash | Microchip
MPN： ATMEGA8-16PC ✗ 停產ATMEGA8-16PC 概覽
An AVR microcontroller is an embedded-processing semiconductor that combines a CPU core, program memory, data memory, peripherals, and input/output ports on one integrated circuit. The ATmega8 family uses a RISC architecture designed for efficient instruction execution and broad embedded-control use. Its self-programmable flash allows firmware to be programmed and updated in system, while SRAM supports working data and stack operations. The device belongs to the broader hierarchy of 8-bit MCU, embedded controller, digital IC, and semiconductor.
The ATMEGA8-16PC combines 16 MHz operation with 8 KB flash, 1 KB SRAM, and 512 bytes EEPROM. Its ADC supports 10-bit conversion and multiple channels, enabling direct acquisition of analog sensor signals without a separate converter. The 28-pin PDIP package provides through-hole assembly compatibility and straightforward prototyping. The supplied data identifies the AVR ATmega series, an 8-bit architecture, and the -16 speed designation corresponding to the 16 MHz device.
At 16 MHz, the AVR core can execute its instruction set at a high rate for control tasks, while the small memory footprint suits compact firmware and low-cost embedded products. The ADC, EEPROM, digital I/O, and in-system programmability reduce the need for external support circuitry. The verified data does not specify every electrical timing, current, temperature, pin, or package dimension, so those values should be confirmed in the manufacturer datasheet before production design.
Typical uses include industrial control boards, temperature and light monitoring, simple motor or relay control, educational AVR platforms, and compact sensor interfaces. A designer should account for the 4.5 V to 5.5 V supply requirement, connect the appropriate clock and decoupling components, and preserve the device-specific pin functions when laying out a replacement board. Firmware and bootloader compatibility should also be verified before changing the MCU grade or package.
This product data consolidates the verified ATMEGA8-16PC specifications, package identity, distributor listings, pricing search context, and practical selection considerations. It is intended to support initial design decisions, sourcing, and comparison rather than replace the complete manufacturer datasheet, programming manual, and electrical validation.
直接替換替代品，適用於 ATMEGA8-16PC — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATMEGA8-16PC （相同外形與佔位） — 差異在於 Package, Mounting Type, ADC Channels, Instructions, EEPROM.
ATMEGA8-16PU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA8-16PI
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA8A-AUR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATMEGA8A-ANR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATMEGA8A-MU
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATMEGA8-16PC 最大額定值與電氣特性
| Architecture | 8-bit AVR RISC |
| Series | AVR ATmega |
| 最大時脈頻率 | 16 MHz |
| 供應電壓 | 4.5 V to 5.5 V |
| Flash Program Memory | 8 KB |
| Flash Organization | 4K x 16 bits |
| Program Memory Type | In-System Programmable Flash |
| SRAM | 1 KB |
| EEPROM | 512 bytes |
| ADC Resolution | 10-bit |
| ADC Channels | 6 or 8 channels |
| 封裝 | 28-pin PDIP |
| 安裝類型 | Through-hole |
| Device Type | 8-bit microcontroller |
| Instruction Throughput | Up to 16 Mips at 16 MHz |
| Programming | In-system programmable |
ATMEGA8-16PC 28-pin pdip 腳位配置指南
ATMEGA8-16PC（28-pin pdip 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATMEGA8-16PC.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATMEGA8-16PC 適用於 6 應用s: Temperature and Environmental Monitoring, Small Motor and Relay Control, AVR Educational Prototyping, Digital Logic and Interface Control, Battery-Powered Embedded Sensor Node, Industrial Data Acquisition Module.
Temperature and Environmental Monitoring
The ATMEGA8-16PC fits compact environmental monitoring because it combines a 16 MHz AVR core with a 10-bit ADC in one 28-pin PDIP device. Connect the analog output of a temperature, humidity, or light sensor to an ADC channel, then use timers, interrupts, and digital outputs to update a display or control a remote node. Its 8 KB flash is sufficient for calibration tables, filtering, threshold logic, and communication routines, while 1 KB SRAM supports buffering. Because the verified supply range is 4.5 V to 5.5 V, the sensor and interface circuitry must be compatible with that rail and the ADC reference must be selected correctly.
推薦
Small Motor and Relay Control
ATMEGA8-16PC is suitable for small embedded control boards that switch relays, lamps, solenoids, or low-current motors from timed or sensor-driven logic. The 16 MHz AVR processing speed supports responsive control loops, while the GPIO and timer resources allow debouncing, pulse generation, and state-machine operation. The microcontroller should not drive inductive loads directly; use suitable transistors, flyback protection, and a power stage sized for the load. Keep the MCU supply at 4.5 V to 5.5 V and isolate motor or relay currents from sensitive ADC and clock nodes through grounding and layout discipline.
推薦
AVR Educational Prototyping
The ATMEGA8-16PC is a practical choice for AVR development and education because it combines a documented 16 MHz AVR core, 8 KB flash, 1 KB SRAM, EEPROM, ADC capability, and a through-hole 28-pin PDIP package. Students can prototype with a breadboard, learn ISP programming, exercise timers and interrupts, and build sensor or display projects without adopting a high-pin-count surface-mount package. The same device can support simple serial communication and control experiments. Because the provided data does not include the full pinout or programming recommendations, the official datasheet and programming documentation should remain the basis for lab wiring and firmware settings.
推薦
Digital Logic and Interface Control
ATMEGA8-16PC can act as the central controller for a small digital interface board because its 8-bit AVR architecture and GPIO resources can supervise switches, indicators, latches, and peripheral command lines. The 8 KB flash provides room for a structured firmware state machine, while EEPROM can retain configuration values when the application requires nonvolatile parameters. For interfaces longer than a short board trace, add a suitable transceiver rather than relying on MCU pins to drive long cables. The 4.5 V to 5.5 V supply requirement should be reconciled with the voltage levels of every attached device, and unused inputs should be handled according to the datasheet.
推薦
Battery-Powered Embedded Sensor Node
ATMEGA8-16PC can serve as the logic section of a low-power sensor node when the surrounding power design controls current consumption externally. Its 1 KB SRAM and 8 KB flash are adequate for sampling, filtering, threshold decisions, and short protocol frames, and its ADC can process compatible analog sensor outputs. Low-power operation still requires review of sleep modes, watchdog behavior, clock startup time, and peripheral leakage, none of which are quantified in the supplied data. Use a regulator and energy-storage design that keeps the MCU within 4.5 V to 5.5 V during active states and account for battery voltage variation under load.
推薦
Industrial Data Acquisition Module
ATMEGA8-16PC is appropriate for a compact data-acquisition module when the design requires local control of multiple analog inputs and a modest firmware footprint. The 10-bit ADC, 16 MHz processing rate, EEPROM, and 8 KB flash can support sensor conditioning, calibration, sampling scheduling, filtering, and status reporting. Industrial deployment should verify operating-temperature limits, isolation, grounding, input protection, and regulatory requirements because those values are not included in the supplied verified data. A transceiver such as RS-485 or CAN can extend the module's reach, while the MCU supply remains constrained to the stated 4.5 V to 5.5 V range.
推薦
推薦產品摘要
工程參考資料，適用於 ATMEGA8-16PC — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATMEGA8-16PU | ATMEGA8-16PI | ATMEGA8A-AUR | ATMEGA8A-ANR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
主要差異化特點
- Directly specified 16 MHz 8-bit AVR control platform (對比ATMEGA16L-8PU)
- 28-pin PDIP package (對比ATMEGA8A-AUR)
- Integrated analog conversion (對比ATMEGA8-16PI)
設計說明
Estimated design guidance: operate the ATMEGA8-16PC from a regulated rail inside the verified 4.5 V to 5.5 V range. Place the required bypass capacitors close to the MCU power pins, route high-current loads separately from the regulator, and verify peripheral input levels before connecting them to GPIO. The supplied data does not provide current consumption or recommended capacitor values, so obtain those values from the manufacturer datasheet rather than estimating them in production.
Use the 28-pin PDIP footprint and follow the exact datasheet pin numbering when laying out the board. Keep the reset circuit, clock components, programming connector, analog inputs, and decoupling paths short and accessible. Do not route motor, relay, or mains-derived signals beneath the MCU or ADC traces. Because the verified data does not include a published pin diagram in the supplied excerpts, validate every connection against the official ATmega8 datasheet.
Do not treat every ATmega8 suffix as electrically interchangeable. Verify the clock grade, package, temperature grade, memory organization, fuse defaults, device signature, and programming requirements for ATMEGA8-16PU, ATMEGA8-16PI, or any proposed replacement. The cross-reference search identifies related parts but does not establish a complete drop-in guarantee. Production substitution should be approved using the manufacturer datasheet and, where applicable, an authorized cross-reference record.
合規資訊
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status.